Natural resources are not unlimited and these resources certainly will be exhausted if they are not used carefully. Developed countries noticed this reality with energy crisis as well as prevention of waste of resources and efforts to increase living standards sought and developed new methods for recycling and reuse of waste material. European Union provided recycling of waste material under light of the same reality. (Curi, Kocasoy, 1982)

Developing countries are also required to end waste of resources and to search for recycling and reuse methods for materials which have economical value in order to benefit natural resources in the long term and maximum which tries to get developed and encounters economical challenges.

Recycling and reuse of materials such as iron, steel, copper, lead, paper, plastics, rubber and glass will reduce amount of foreign exchange paid for scrap material imported to meet requirements of the country as well as prevent natural resources from being exhausted and will save energy substantially. Another subject which is as much important as those subjects mentioned above is that decrease in the amount of solid wastes and thus prevention of environmental pollution as well. Reduction of quantity and volume of solid wastes is a great advantage for those countries which do not have enough area to landfill solid waste.

According to researches, energy required for recycling material is a lot less than that required to extract metal from mineral quarries. That is to say that energy required to produce 1 ton of aluminum using recycled metal is 4% of that energy consumed for aluminum to be produced using mineral. Similarly; energy required to recycle copper compounds is 13% of that energy required to get said metal from mineral quarries and this figure is 19% for iron-steel. (Lyons and Tonkin, 1975). Similarly recycling of 1 ton used paper saves 17 trees and 4100 kilowatt hour energy and this is equat to the electrical energy used by a family for a period of 1 year.

Reusable material are produced using recycling waste material. For example; glass, metal, plastic and paper/cardboard are evaluated as a new raw material applying various treatments. Production of new bottle, box, plastics, paper and fertilizer using said waste material as raw material is called recycling. First step of a healthy recycling system is collection of these materials separating at the resource. When said wastes having recyclable quality are mixed with other wastes, secondary products made of said material have less quality and cleaning process might be encountered some problems with. Therefore, the most important step of recycling is separation at the resource and collecting with separate bins.

Which materials are recyclable material:

Metal, plastics and paper and cardboard used n food and drink packages constitute important part of recyclable material exist in the waste. Besides bone, pieces of textile cloth are recyclable in special separation facilities.